Heather Locklear was charged with driving under the influence of prescription medication on Saturday night.

The former "Melrose Place" actress - who checked herself into an Arizona treatment facility in June to seek treatment for "anxiety and depression" - was stopped at around 4.30 p.m. after displaying erratic behavior while driving in Barbara County, California.

The 46-year-old actress - who checked into the Arizona facility on June 19 - is said to be feeling rejuvenated after spending four weeks being treated for anxiety and depression.

A source said: "Heather is feeling really great. And she looks beautiful, just radiant. She seems happier - she told a really funny story and she laughed from her core. That's when I knew she was going to be fine. I think that's the best part of all - it's so nice to hear her laugh."

Heather Locklear has entered rehab to seek treatment for "anxiety and depression."

The 'Melrose Place' actress has checked herself into a facility in Arizona to be cared for by professionals who will evaluate her medical condition.